The inclusion of BAO to CMB changes the constraints significantly, because of their mutual tension in a curved universe, and we see that this scenario becomes very close to the spatially flat \(\Lambda \) CDM one. However, the results for CMB+Pantheon are much more interesting. We see that for this combination we get a closed Universe at more than 95% CL (\(\Omega _K = -0.028_{- 0.020}^{+ 0.019}\)  at 95% CL for CMB+Pantheon) together with a phantom Universe at more than 95% CL (\(w = -1.22_{-0.18}^{+0.17}\)  at 95% CL for CMB+Pantheon), i.e. an indication for a phantom closed universe, as already noticed in [1]}. Similar to the CMB alone case, here too, we get a smaller value of the Hubble constant (\(H_0 = 61.2_{-2.4}^{+ 2.4}\)  km/s/Mpc at 68% CL for CMB+Pantheon) and hence a bigger value of \(\Omega _{m0}\)  due to the positive correlation between \(H_0\)  and \(\Omega _{m0}\) .
